Hi,
We are using Zenoss to monitor a number of paravirt Linux hosts (using
the xen net device), it appears that an snmp query to the paravirt
hosts is reporting the interface speed as 10mbit - which is
significantly lower than what it really is (the dom0 host has 1gbit
networking). This causes the occasional spurious error from the
monitoring tool as it notices that a host is using 75% of its
''Maximum'' - i.e 7.5mbit - which of course isn''t
really a problem.
Looking a the output from snmpwalk it does look like the paravirt''s
interface (eth0) is being reported as 10mbit
IF-MIB::ifIndex.1 = INTEGER: 1
IF-MIB::ifIndex.2 = INTEGER: 2
IF-MIB::ifIndex.3 = INTEGER: 3
IF-MIB::ifDescr.1 = STRING: lo
IF-MIB::ifDescr.2 = STRING: sit0
IF-MIB::ifDescr.3 = STRING: eth0
IF-MIB::ifType.1 = INTEGER: softwareLoopback(24)
IF-MIB::ifType.2 = INTEGER: tunnel(131)
IF-MIB::ifType.3 = INTEGER: ethernetCsmacd(6)
IF-MIB::ifMtu.1 = INTEGER: 16436
IF-MIB::ifMtu.2 = INTEGER: 1480
IF-MIB::ifMtu.3 = INTEGER: 1500
IF-MIB::ifSpeed.1 = Gauge32: 10000000
IF-MIB::ifSpeed.2 = Gauge32: 0
IF-MIB::ifSpeed.3 = Gauge32: 10000000 <------This one!
Is there any way of indicating the ''speed'' of an interface to
the xen
paravirts to avoid this happening - it''s obviously not critical, but
it''s a nuisance when it generates ''noise'' errors.
David.
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